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Extremely low frequency magnetic fields originating from equipment used for assisted reproduction, umbilical cord and peripheral blood stem cell transplantation, transfusion, and hemodialysis
Author(s) -
Moriyama Kosei,
Sato Hiroyuki,
Tanaka Kenji,
Nakashima Yoshiyuki,
Yoshitomi Kuniaki
Publication year - 2005
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/bem.20071
Subject(s) - umbilical cord , transplantation , stem cell , medicine , hemodialysis , biomedical engineering , andrology , surgery , immunology , biology , microbiology and biotechnology
The extremely low‐frequency (ELF) magnetic fields (MFs) originating from equipment used for assisted reproduction, umbilical cord‐blood and peripheral‐blood stem cell transplantation, transfusion, and hemodialysis were measured. The ELF‐MF values were 0.1–1.2 μT on clean benches, <0.1–8.0 μT on inverted microscopes, <0.1–13.6 μT in CO 2 incubators, 4.3–11.5 μT in centrifuges, 0.4–18.8 μT in programmed freezers, <0.1–0.3 μT in deep freezers, 0.3–3.1 μT on cell separators, and 0.2–0.9 μT in hemodialysers. Frequencies of MFs were nominally 60 Hz, but some devices showed non‐sinusoidal 120 Hz. Such MFs can be reduced by shielding the sources or altering the protocols employed. Bioelectromagnetics 26:69–73, 2005. © 2004 Wiley‐Liss, Inc.